---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Thu 08/13/20: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:49 AM - 912ULS Fuel pump pressure below limits (Andy Ringrose) 2. 06:40 AM - Re: 912ULS Fuel pump pressure below limits (Dashwoodlock) ________________________________ Message 1 _____________________________________ Time: 01:49:35 AM PST US From: "Andy Ringrose" Subject: RotaxEngines-List: 912ULS Fuel pump pressure below limits New pump fitted iaw Rotax 5 yearly recommendation 4 months ago and has approx. 20 hours in service. A progressive reduction in pressure trend observed during previous 6 hours operation reaching a minimum of 1.6PSI in cruise on the last flight. Maximum pressure observed on ground test of 2.3 PSI. Fuel pump pressure indicator calibration tested OK. Awaiting response from ROTAX UK. Is this an isolated occurrence? Andy -- This email has been checked for viruses by AVG. https://www.avg.com ________________________________ Message 2 _____________________________________ Time: 06:40:09 AM PST US From: Dashwoodlock Subject: Re: RotaxEngines-List: 912ULS Fuel pump pressure below limits i had similar problem on one tank in a evektor..=C2- =C2-the wet wing tank had been leaking and serviced the year before i got the plane.. they d id not follow procedures and put too much sealant on the inspection hatch.. . and installed rivets before it tacked up.... the tank had ... hundreds of hair like strings ( too much silicon used) hanging from top to the bottom of tank....... through out the year=C2- these started to break off and co mpleatly=C2- plugged the fuel line from one end to the other.... up to th e selector valve.... all parts were removed and cleaned and reinstalled.... ..all we could do to the tank was borescope retractor as much of the silic on fibers as we could through the filler neck.... .. .best fix should have removed the=C2- 18 x 18" inspections hatch and resealed .. and repainted the wing...=C2- On Thursday, August 13, 2020, 06:53:36 a.m. EDT, Andy Ringrose wrote: New pump fitted iaw Rotax 5 yearly recommendation 4 months ago and has approx. 20 hours in service.=C2- A progressive reduction in pressure tren d observed during previous 6 hours operation reaching a minimum of 1.6PSI in cruise on the last flight. Maximum pressure observed on ground test of 2.3 PSI. Fuel pump pressure indicator calibration tested OK. Awaiting response from ROTAX UK. Is this an isolated occurrence?=C2- Andy -- This email has been checked for viruses by AVG. https://www.avg.com ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rotaxengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RotaxEngines-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rotaxengines-list Browse Digests http://www.matronics.com/digest/rotaxengines-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.